Ventilator



May 25, 1943. o. P. cRAMER VENTILATOR Filed Ndv. 17, 19:59

2% E mwwm R Mjm -M 2 m 5 0 fi i Patented May 25, 1943 UNITED STATES TENTOFFICE VENTILATQR Otto Paul Cramcr, San Francisco, Calif.

Application November 17, 1939, Serial No. 394,935

1 Claim. (CI. 98-88) My invention relates to ventilator construction;and particularly to a building construction wherein a ventilator isbuilt into a building wall in association with a window, but functioningindependently thereof.

It is among the objects of my invention to provide a ventilator mountedin the space between a window and the floor of a room for effectingventilation without opening the win" dow.

Another object is to provide a building construction wherein a singleframe inset in the wall of a building is arranged to receive one or moreunits of window sash, and also a ventilator by which ventilation may becontrolled independently of the window.

Another object is to provide a ventilator mounted in an extension of awindow frame without interference with the mounting and operation of thewindow sash; and provided with a door serving the double purpose. ofcontrolling ventilation and deflecting drafts.

The invention possesses other objects and features of advantage, some ofwhich, with the foregoing, will be set forth in the followingdescription of my invention. It is to be understood that I do not limitmyself to this disclosure of species of my invention, as I may adoptvariant embodiments thereof within the scope of the claim.

In the drawing:

Figure 1 is a vertical section of a portion of a building having theventilator of my invention built therein, portions being broken away.

Figure 2 is a fragmental elevational view showing the ventilatorconstruction of my invention as viewed from the inside of a room,portions of the ventilator door and screen being broken away.

Figure 3 is an elevational view of the ventilator, and the lower portionof the frame into which it is built, as viewed from the outer side.

In terms of broad inclusion, the ventilator construction of my inventioncomprises a louver built into a building wall between a Window and thefloor of a room and provided with a door movable to open and close thelouver, and to provide a draft deflector when the ventilator door isopen. Preferably the louver is built into an extension of a window frameof otherwise more or less standard construction, without interferingwith the mounting or operation of the window sash mounted in the frame;the louver being arranged to permit controlled ventilation independentlyof the window;

In terms of greater detail, the device of my invention comprises alouver designated in general by the numeral l, inset in the wall 2. of abuilding, preferably between the bottom of a window 3 and the floor 4 ofa room. In the preferred embodiment illustrated in the drawing, thelouver I is built into an extension 6 of a window frame I of thecharacter commonly fabricated at a planing mill for mounting in the wallconstruction of a building.

The frame I with its extension 6 comprises a pair of side members 8connected at their upper ends by a suitable top member 9. At their lowerends, the side members 8 are secured to a main sill l.| similar to thesills commonly provided in the ordinary window frame. A transom-bar I2is mounted across the frame in spaced relation to the main sill II Thetransom-bar [2 serves as a secondary sill at the bottom of the mainframe I and top of the extension 6. Facing members l3 and M are securedto the top member 9 and side members 8 respectively, as in the ordinarywindow frame construction. V

The main frame. portion 1 is arranged to receive one or more units ofwindow sash l6, mounted therein in accordance with standard practice. Inthe drawing I have illustrated the conventional double sliding sasharrangement; but single or double hinged sash, or other types of sashand sash mountings may be substituted. The transom-bar E2 or secondarysill serves as the sill for the window, and performs the functions ofthe ordinary window sill.

The louver l is formed by a plurality of spaced louver boards I!extending transversely across the extension -6 of the frame. Preferablythe louver boards l! are made of strips of wood set at an appropriateangle with their ends rabbetted into the side members 8. Metal strips,secured in any suitable manner, may be substituted if desired. The termlouver board is used herein in a generic sense inclusive of louverstrips of wood, metal or other material, secured in any convenientmanner,

The louver boards I! are preferably arranged with their outer loweredges substantially flush with the outer edges of the side frame members8. The upper inner edges of the boards I! are spaced inwardly from theinner edges of the frame members 8; and a screen I8 is preferablymounted to cover the louver openings. The screen 18 may be mounted inany suitable manher, but I prefer to secure it to a frame l9 removablyfitted into the frame extension 6. The frame may seat against the inneredges of the louver boards [1, and may be held in place by a suitablespring catch 2|.

A door 22 is hingedly mounted to cover the inner side of the louver I.In the preferred embodiment illustrated in the drawing, the door 22 ismounted between the side frame members 8 upon pivot pins 23 near thelower edge of the door. The lower edge of the door is received in arecess 24 formed in the inner edge of the main sill H. In its closedposition, the door preferably abuts against the screen frame l9, and maybe held in closed position by a suitable spring catch 26.

The frame 1 with its extension 6 is set in a building wall in accordancewith the standard practice of mounting window frames. Because of theincreased length of the frame, due to the extension 6 thereof, the mainsill may rest directly upon the stud plate 21 of the wall, or upon aplate secured at any desired height thereabove. The transom-bar orsecondary sill I2 is positioned at the level ordinarily occupied by thewindow sill, and at a desired height above the floor 4. The frame issecured in place, and the usual outer and inner trim 29 and 30 isapplied in accordance with standard practice.

In installations where the frame extension 6 extends substantially tothe floor 4, the usual base-board 3| may provide the inner trim at thebottom of the frame. The base-board 3 l, or other trim, preferablyterminates slightly below the level of the pivot pins 23 so that thedoor 22 may be swung inwardly thereover to an open position, asindicated in Figure l of the drawing.

In the completed structure, the window sash l6 may be operated in theusual manner above the transom-bar or secondary sill l2; without beingin any way affected by the louver I,

In its closed position, the louver door 22 is substantially flush withthe wall, and does not obstruct free access to the window. When the door22 is moved to an open position, ventilation may be obtained through thelouver I without the need of opening the window, thereby mini- 2,320,268v p r. l

mizing damage to curtains or drapes hung over the window, and permittingthe window to be kept locked.

Preferably the movement of the door 22 is limited so that, in its openposition, it will incline inwardly and upwardly into the room to providea draft deflector. The recess 24 may be so shaped as to limit themovement of the lower edge of the door 22 therein, and thereby provide astop 32 by which the door may be held in its draft deflecting position;or other stop means of any suitable character may be provided.

The arrangement of the louver boards prevents the entrance of rain; andthe screen l8 not only excludes insects, but serves to collect moisturefrom fog or damp atmosphere and thereby reduces the entrance of moistureof that character. Being built directly into a unitary frame with thewindow, the ventilator may be easily and economically installed; andutilizes the ordinarily wasted wall space below a window for ventilatingpurposes without obstructing or disfiguring the window itself.

I claim:

A combined window and ventilator casement fabricated as a unit forinstallation in a building wall and comprising a pair of uniformlyspaced side members connected at their upper ends by a top frame memberand at their lower ends by a louver sill, a window sill secured to theside members at a level above the louver sill, said window sill dividingthe casement into an upper sash receiving portion and a lower ventilatorportion, louver boards extending transversely across the ventilatorportion with their ends secured directly to the'side members, and a,door pivoted at its lower edge upon the inner side of the casement forcovering the ventilator portion, the inner edge of the louver sill beingrecessed to receive the lower edge of the door and provided with ashoulder for limiting opening movement thereof.

orro PAUL CRAMER.

